v3.26.1
Revenue Recognition (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Dec. 31, 2025
Disaggregation of Revenue [Line Items]      
Contract with Customer, Asset, after Allowance for Credit Loss $ 1,700   $ 1,900
Operating Revenue 176,256 $ 219,420  
Accessorial and other revenues 15,700 15,800  
fuel surcharge [Member]      
Disaggregation of Revenue [Line Items]      
Fuel surcharge revenue $ 22,400 $ 26,300